MIT Kerberos 5 における整数オーバーフローの脆弱性
| Title |
MIT Kerberos 5 における整数オーバーフローの脆弱性
|
| Summary |
MIT Kerberos 5 (別名 krb5) には、整数オーバーフローの脆弱性が存在します。
|
| Possible impacts |
情報を改ざんされる可能性があります。 |
| Solution |
ベンダ情報および参考情報を参照して適切な対策を実施してください。 |
| Publication Date |
Jan. 16, 2018, midnight |
| Registration Date |
Feb. 21, 2018, 12:21 p.m. |
| Last Update |
Feb. 21, 2018, 12:21 p.m. |
|
CVSS3.0 : 重要
|
| Score |
7.5
|
| Vector |
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
|
CVSS2.0 : 警告
|
| Score |
5
|
| Vector |
AV:N/AC:L/Au:N/C:N/I:P/A:N |
Affected System
| MIT Kerberos |
|
Kerberos 5 1.16 まで
|
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
ベンダー情報
その他
Change Log
| No |
Changed Details |
Date of change |
| 1 |
[2018年02月21日]
掲載 |
Feb. 21, 2018, 12:21 p.m. |
NVD Vulnerability Information
CVE-2018-5709
| Summary |
An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. There is a variable "dbentry->n_key_data" in kadmin/dbutil/dump.c that can store 16-bit data but unknowingly the developer has assigned a "u4" variable to it, which is for 32-bit data. An attacker can use this vulnerability to affect other artifacts of the database as we know that a Kerberos database dump file contains trusted data.
|
| Publication Date |
Jan. 16, 2018, 6:29 p.m. |
| Registration Date |
Feb. 26, 2021, 10 a.m. |
| Last Update |
Nov. 21, 2024, 1:09 p.m. |
Affected software configurations
| Configuration1 |
or higher |
or less |
more than |
less than |
| cpe:2.3:a:mit:kerberos:*:*:*:*:*:*:*:* |
|
5-1.16 |
|
|
Related information, measures and tools
Common Vulnerabilities List